[3] Early settlers to the area were attracted by land sales and the lumber industry.

By 1920 the population of Arna had reached a peak of 350, but this number steadily decreased over the following decades.

[4] In 1981, the last train passed through Markville, and the railroad bed was subsequently dismantled and replaced by the Gandy Dancer Trail, which is currently used almost exclusively by All Terrain Vehicles and snowmobiles.

Located within Arna Township is the community of Markville, with a population of approximately 30 people.

The topography of the area is fairly level, but there are several low hills and ridges in the township.